Carbureter.



H. DOCK. GARBURBTBR. APPLICATION FILED SEPT. 16, 1911.

Patented Nov. 5, 1912.

UNITED sTATEs liuiTEivT oEiaioE.l

HERMAN DOCK, OEWESTERLY, RHODE ISLAND. e

i CARBURETEE.

Specification of Letters Patent.

Patented Nov. 5, 1912.

Applicationliled September 16, 1911. Serial No. 649,648.

To all whom 'it may concern:

Be it known that I, HERMAN DOCK, a citizen of the United States,residing at 1Westerly, county of Washington, and State of Rhode Island,have invent-ed a new and useful Improvement in Carbureters, 'of whichthe following is a full, clear, and eX- act description, reference beinghad to the accompanying drawings, which form a part of thisspecification.

My invention has for its object certain vimprovements in carburetersfor, gas engines, tor instance, for'use in automobiles.

line 2--2, Fig. l. Fig. 3 is a cross section on line 3 3, Fig. 2.

a is the asolene nozzle of the carbureter, b the needIe valve, c and dthrottle valves located, respectively, at each end of the carburetingchamber 12. The valve c controls the connection from the carburetingchamber to the engine. trols the air supply to the carburet-ing chamber.

e is a hot air supply pipe, f is a valve in said pipe for controllingthe passage of hot air inthe pipe e.

g is a valve in a pipe 14 leading from .the atmosphere, is a pipe from aheating medium leading to jacket y' of carbureter, h isa controllingvalve in said pipe. Pipe may lead from a source of hot Water, or it maybe in connection with the exhaust gases, where said gases are, at avhigh temperature.

j is the gasolene or other hydrocarbon liquid supply, having the regularnection, not shown, with a tank.

c is a lever to which are connected the valves f, g and h.

Z is a lever to valve d.

` which is connected the l m' is a lever to which is connected the valvec. These levers are interconnected by rod or link nl so that on'themovement bf The valve d conpipe conv the rod or link 'n the levers allmove in unison.

The valves are so set and the lever connection is vsuch that theoperation is as follows: Taking it that the valve c is wide open and itis desired to slow down, link n is moved in a direction which causesvalve c -tol close, throttling the engine. At the same time, valve al isclosed, which cuts down the air supply to the carbureting chamber,thereby producing the proper proportion of air and liquid, instead of,as ordinarily is the case, leaving this to uncontrolled action. At thesame time that the valves c and d are closing, the valve y to theatmosphere is also closing, and the valves f and h 'are opening, whichadmits warnior hotl air to the inlet to the car? bureting chamber,ywhich inlet is controlled by the valve d,"and -also a heating medium to'the jacket of the'carbureter.' At slowy speeds, it is bet-tei' to admitwarm air to the carbureting chamber, while at higher speeds a cooler(atmospheric) air is better. By my construction, I disregard all use ofpuppet valves, automatic valves, and the like, and relying as I do, forthe correct mixture under various speeds on the precise mechanicalmovement, I approximate the proper proportion of air and fuel, no y matnter what the speed of the engine may be.

Having no w fully described my invention, what I claim and desire toprotect by Letters Patentl is:

1. In a carbureter having a carbureting chamber, the combination of avalve controlling the air inlet to the carbureting chamber, a -valvecontrollmg the outlet Jfrom said chamber to the engine, a pipe leadingfrom the atmosphere 'to the inlet end of the carbureting chamber, acontrolling valve 'in said pipe, avpipe leading .from a heated airsupply to the inlet end of the carburting chamber, 1a controlling valvein said pipe, means to operate said valves, said means beinginterconnected. so as to move said valves in. unison,the valvecontrolling the pipe rom the heated air supply being oppositely set fromthe remainder of the valves. l 2. In a carbureter having a carburetingchamber, the combination of a valve controlling the airl inletvto thecarbureting chamber a valve controlling the outlet `from said chamber tothe engine, a pipe valves,

leading from the atmosphere to the inlet end oi the carbureting chamber,a controlling Valve in said pipe, a pipe leading from a heated airsupply tothe inlet end of the carbure 'ing chamber, a controlling valvein said pipe, means to operate said valves, said vmeans beinginterconnected so as to move said valves in unison, the valvecontrolling the pipe from the heated air supply being oppositely setfrom the remainder of the valves, a jacket for the carbureting chamber,a pipe leading from a heating medium to said jacket, a controlling Valvein said pipe, said valve being interconnected With the operating meansfor the other valves, said valve and.V the valve in the pipe from theheated air supply to the inlet side of the carbureting chamber being setalike.

3. In a carbureter having a carbureting,

chamber, the combination of a valve controlling the air` inlet to thecarbureting chamber, a valve controlling the outlet from said chamber tothe engine, a pipe leading from the atmosphere to the inlet end of thecarbureting chamber, a controlling valve in said pipe, means to supplyheated air between the rst named valve and the lastnamed valve, a jacketfor the carbureting chamber, a pipe leading to said jacket, a

controlling valve in said pipe, means to operate said valves, said meansbein interconnected so as to Imove said va ves in unison, the valvecontrolling the pipe to the jacket lbeing .oppositely set from .theother valves.

4. In. a carbureter having a carbureting. chamber, thecombination vof an`air pipe leading to the inlet end of the carbureting chamber a valve insaid pipe, a second valve controlling the inlet to the carburetingchamber, means for supplying -air between said two valves, a third valvecontrolling the outlet from said chamber to the engine, and means tooperate said valves, said means being interconnected so as to move saidvalves 1n unison.

5. In a carbureter having a carbureting chamber, the combination, of apipe leading from a heated air supply tothe inlet end of the carburetinchamber, a valve in said pipe, a second va ve controlling the inlet to lthel carbureting chamber, means for supplylng air between said twovalves, a third valvecontrolling the outlet from said cham-l ber tothefengine,

said means being interconnected so as to movefsaidvalves in unison, therst `f\ valve being oppositely set from the other 'fftw'o valves.

6, In a carbureter having a carbureting chamber, the combination of avalve controlling the air inlet to the carbureting chamber, a secondvalve cont-rolling the outlet from said chamber to the engine, a jacketfor the carbureting chamber, a pipe and means to operate said thirdvalve on the last named pipe, and

means to operate said valves, said means being interconnected so as tomove said valves in unison', the third valve being oppositely set fromthe remainder of the valves.

8. In a carbureter having a carbureting chamber, the combination of avalve controlling the outlet'from said chamber to the engine, a jacketfor the carbureting chamber, a pipeleading to said jacket, a valve inthe last named pipe, and means to operate 'said valves, said means beinginterconnected so as to move said valves in unison and said valves belngopposltely set.

9, In a carbureter having a carbureting.

chamber, the combination of a valve controlling the` air inlet to thecarbureting chamber, a pipe leading `from the atmosphere to the airinlet to the carbureting chamber, a second valve on t-he last namedpipe, a pipe leading from a heated air supply to the air inlet to the1carbureting chamber, a third valve on the last named pipe, and means tooperate said valves, said means being 'interconnected so as to move saidvalves in unison, the third valve being oppositely set from the othervalves.

l0. In a carbureter having a carbureting chamber, the combination, of avalve controllin the air inlet to said chamber, a valve contro ling theoutlet from said chamber to the.y engine, interconnected means for oper`mosphere to the air inlet end of the carbureting chamber, a controllingvalve in said pipe, said' valve being interconnected.

withf the operating means'of the first mentioned valves, la pipe leadingfrom a heated air supply to the air inlet end of the carburet-ingchamber, a controlling valve in said pipe, said valve being oppositelyset with respect to the-other mentioned valves, and interconnected withVthe operating means for said other mentioned valves.

11. In a carbureter having a carbureting chamber, the combination, of avalve con` trolling the air inlet to said chamber, a valve controllingthe outlet from said chamber to the engine, interconnected means foroperating said valves whereby said valves move in unison, a hydrocarbonlliquid supply, an inlet to the carbureting chamber from said liquidsupply, a pipe leading from the atmosphere to the air inlet end of thecarbureting chamber, a controlling Valve in said pipe, said Valve being`interconnected with the operating means of the rst men-v tioned valves,a pipe leading from a heated air supply to the air inlet end of thecarbureting chamber, a controlling valve in" said pipe, a jacket forsaid carbureting chamber, a pipe from a heatin medium to said jacket, acontrolling valve 1n said pipe,

terconnected with the operating means for u the other valves.

In testimony of which invention, I have hereunto set my hand, atPhiladelphia, on this 13th day of September, 1911.

HERMAN DOCK.

Witnesses:

M. M, HAMILTON. E. E. WALL.

